perish the thought （用于拒绝一项建议或希望某事永不发生）没门儿，甭想了，下辈子吧
例句
Bats, swallows and more are chemically preserved in the pose in which they perished, sealed in the deposits of sodium carbonate in the water. 以化学方式保存成它们死亡时的姿势
Hundreds perished when the ship went down. 轮船沉没，数百人罹难。